/* ===== Camera Ba Đồn – giao diện theo tông IMOU ===== */
:root{--orange:#F28506;--accent:#D96A00;--accent-dark:#B85500;--ink:#222;--muted:#5F5F5F;--tint:#F5F5F5;--border:#EBEBEB;--soft:#FFF4EA}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;color:var(--ink);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased;padding-bottom:84px}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:'Montserrat','Be Vietnam Pro',system-ui,sans-serif;line-height:1.2;margin:0;text-wrap:balance}
h2{font-size:clamp(26px,3.6vw,36px);font-weight:800;letter-spacing:-.3px}
h2::after{content:"";display:block;width:48px;height:3px;background:var(--orange);border-radius:2px;margin-top:14px}
p{margin:0}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.hep{max-width:880px}
section{padding:clamp(44px,7vw,80px) 0;scroll-margin-top:64px}
.nen-xam{background:var(--tint)}
.lead{color:var(--muted);font-size:17px;max-width:720px;margin:14px 0 28px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:10px;font-weight:700;font-size:16px;line-height:1.2;text-decoration:none;border:0;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s}
.btn svg{width:18px;height:18px;flex:none}
.btn-cam{background:var(--accent);color:#fff}.btn-cam:hover{background:var(--accent-dark)}
.btn-vien{background:#fff;color:var(--accent-dark);border:1.5px solid var(--accent)}.btn-vien:hover{background:var(--soft)}
.btn-den{background:#222;color:#fff}.btn-den:hover{background:#000}
.nut{display:flex;flex-wrap:wrap;gap:12px}
.ic-tron{width:52px;height:52px;flex:none;border-radius:50%;border:2px solid var(--orange);color:var(--accent);display:flex;align-items:center;justify-content:center;background:#fff}
.ic-tron svg{width:26px;height:26px}

/* ----- Đầu trang ----- */
.top{position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid var(--border)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px}
.logo{text-decoration:none;line-height:1.15}
.logo b{display:block;font-family:'Montserrat','Be Vietnam Pro',sans-serif;font-weight:800;font-size:18px;color:var(--orange);letter-spacing:.5px}
.logo small{font-size:12px;color:var(--muted)}
.menu{display:flex;gap:22px}
.menu a{text-decoration:none;font-weight:500;font-size:15px}.menu a:hover{color:var(--accent)}
.top .btn{min-height:42px;padding:0 16px;font-size:15px}
@media(max-width:980px){.menu{display:none}}
@media(max-width:480px){.logo small{display:none}.logo b{font-size:16px}.top .btn{padding:0 12px;font-size:14px;min-height:40px}.top .wrap{gap:8px}}

/* ----- Hero ----- */
.hero{padding:clamp(24px,4vw,44px) 0 clamp(28px,4vw,48px)}
.hero-in{display:flex;flex-wrap:wrap;align-items:center;gap:24px}
.ht{flex:1 1 440px;min-width:0}
.hi{flex:1.1 1 380px;min-width:0}
.hi img{width:100%;height:auto;-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16%,#000 90%,transparent 100%),linear-gradient(180deg,transparent 0,#000 10%,#000 88%,transparent 100%);-webkit-mask-composite:source-in;mask-image:linear-gradient(90deg,transparent 0,#000 16%,#000 90%,transparent 100%),linear-gradient(180deg,transparent 0,#000 10%,#000 88%,transparent 100%);mask-composite:intersect}
.hero h1{font-size:clamp(38px,6vw,64px);font-weight:800;text-transform:uppercase;line-height:1.05;letter-spacing:-.5px}
.hero h1 .cam{display:block;color:var(--accent)}
.hero h1.h1-phu{text-transform:none;font-size:clamp(34px,5vw,54px)}
.hero h1.h1-phu .cam{display:inline}
.kicker{display:block;font-family:'Be Vietnam Pro',sans-serif;font-size:15px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.gach{width:70px;height:4px;background:var(--orange);border-radius:2px;margin:20px 0 16px}
.phu{font-size:clamp(16px,2vw,20px);font-weight:700;text-transform:uppercase;line-height:1.4;margin:0 0 22px;color:#2B2B2B}
.mo-ta{font-size:17px;color:var(--muted);max-width:560px;margin:0 0 22px}
.xem-gia{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-weight:700;color:var(--accent-dark);text-decoration:none}
.xem-gia svg{width:18px;height:18px}.xem-gia:hover{text-decoration:underline}
.cam-ket{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;max-width:470px;margin:26px 0 0}
.cam-ket li{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;font-size:11.5px;font-weight:700;text-transform:uppercase;line-height:1.3}
.vong{width:58px;height:58px;border-radius:50%;border:2px solid var(--orange);display:flex;align-items:center;justify-content:center;color:var(--accent)}
.vong svg{width:28px;height:28px}
@media(max-width:820px){.hi{order:-1}}

/* ----- Dải số liệu ----- */
.so-lieu{border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.so-lieu ul{list-style:none;margin:0 auto;padding:22px 20px;max-width:1160px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;text-align:center}
.so-lieu b{display:block;font-family:'Montserrat','Be Vietnam Pro',sans-serif;font-weight:800;font-size:clamp(22px,3vw,28px);color:var(--accent)}
.so-lieu span{font-size:14px;color:var(--muted);font-weight:500}
@media(max-width:700px){.so-lieu ul{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* ----- Chọn theo nhu cầu ----- */
.nc{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.nc-the{border:1px solid var(--border);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:10px;background:#fff}
.nc-the h3{font-size:19px;font-weight:800;margin-top:4px}
.nc-the p{color:var(--muted);font-size:15px}
.goi-y{margin-top:auto;display:flex;flex-wrap:wrap;gap:8px;padding-top:8px}
.goi-y span{font-size:13px;color:var(--muted);width:100%}
.goi-y a{font-size:14px;font-weight:600;text-decoration:none;color:var(--accent-dark);background:var(--soft);border:1px solid #FFD9B3;border-radius:999px;padding:4px 12px}
.goi-y a:hover{background:#FFE8D1}
.dv-khac{display:flex;flex-wrap:wrap;gap:10px 14px;margin-top:20px;align-items:center}
.dv-khac span{font-weight:600;color:var(--muted)}
.dv-khac a{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-weight:600;border:1px solid var(--border);border-radius:999px;padding:8px 16px;background:#fff}
.dv-khac a:hover{border-color:var(--orange)}
.dv-khac svg{width:18px;height:18px;color:var(--accent)}

/* ----- Bảng giá ----- */
.loc{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 4px}
.loc button{font:inherit;font-size:14px;font-weight:600;min-height:40px;padding:0 18px;border-radius:999px;border:1px solid #DDD;background:#fff;color:#222;cursor:pointer}
.loc button:hover{border-color:#BBB}
.loc button[aria-pressed="true"]{background:#222;color:#fff;border-color:#222}
.nhom{font-size:20px;font-weight:800;margin:28px 0 14px}
.sp-luoi{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.sp{background:#F5F5F5;border-radius:18px;display:grid;grid-template-columns:minmax(0,1fr) 96px;grid-template-areas:"hinh tn" "noi noi" "nut nut";grid-template-rows:auto 1fr auto;position:relative;scroll-margin-top:84px;transition:box-shadow .2s,background .2s}
.sp:hover{background:#F0F0F0;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.sp:target{box-shadow:0 0 0 3px #FFD9B3}
.sp-tag{position:absolute;top:12px;left:12px;z-index:1;display:flex;align-items:center;gap:6px}
.sp-so{width:26px;height:26px;border-radius:50%;background:#fff;font-weight:800;font-size:12px;display:flex;align-items:center;justify-content:center}
.sp-nhan{font-size:12px;font-weight:700;line-height:1;background:var(--orange);color:#fff;padding:6px 10px;border-radius:999px}
.sp-nhan.do{background:#C81E1E}
.sp-hinh{grid-area:hinh;display:flex;align-items:center;justify-content:center;padding:44px 0 6px 12px;min-width:0}
.sp-hinh img{width:100%;max-width:168px;height:auto;aspect-ratio:1;object-fit:contain}
.sp-tn{grid-area:tn;list-style:none;margin:0;padding:44px 12px 6px 0;display:flex;flex-direction:column;justify-content:center;gap:12px;text-align:center}
.sp-tn li{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11.5px;line-height:1.25;color:#444}
.sp-tn svg{width:22px;height:22px;color:var(--accent)}
.sp-tn .dpg span{color:#777}
.sp-tn .dpg b{font-size:13px;line-height:1.2;color:var(--ink)}
.sp-noi{grid-area:noi;padding:10px 18px 0;display:flex;flex-direction:column;gap:6px;min-width:0}
.sp h3{font-size:18px;font-weight:800}
.sp-dong{font-size:13px;color:var(--muted)}
.sp-ban{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}
.sp-ban span{font-size:12.5px;line-height:1.2;padding:5px 9px;background:#fff;border:1px solid #E0E0E0;border-radius:8px;color:#444}
.sp-ban .on{border-color:var(--accent);color:var(--accent-dark);font-weight:700}
.sp-gia{margin-top:auto;padding-top:6px}
.gia-nhan{display:block;font-size:12.5px;font-weight:600;color:var(--muted)}
.sp-gia b{display:block;font-family:'Montserrat','Be Vietnam Pro',sans-serif;font-size:26px;font-weight:800;line-height:1.2;color:#F05A00}
.gia-bh{display:block;font-size:12.5px;font-weight:600;color:#1E8E3E;margin-top:2px}
.tron-goi{margin-top:8px;background:#fff;border:1px dashed #F2B47A;border-radius:10px;padding:7px 10px}
.tron-goi p{font-size:13px;color:#333}
.tron-goi strong{font-weight:800;color:#E04E00;white-space:nowrap}
.tron-goi small{display:block;font-size:11.5px;line-height:1.35;color:#C25E00;margin-top:2px}
.sp-nut{grid-area:nut;display:flex;gap:8px;padding:12px 18px 18px}
.sp-nut .btn{min-height:44px;font-size:15px}
.sp-nut .btn-cam{flex:1}
.sp-nut .btn-vien{padding:0 14px}
.sp-noibat{grid-column:1/-1;display:flex;flex-wrap:wrap;overflow:hidden}
.sp-noibat .sp-noi{flex:1 1 340px;padding:56px 28px 26px;gap:10px}
.sp-noibat h3{font-size:26px}
.sp-noibat .sp-tn{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px 10px;padding:8px 0 4px;margin:0;border:0}
.sp-noibat .sp-tn li{font-size:12.5px}
.sp-noibat .sp-gia b{font-size:32px}
.sp-noibat .sp-nut{padding:6px 0 0;max-width:420px}
.sp-anhlon{flex:1.4 1 360px;min-height:300px;position:relative;background:#E8E8E8}
.sp-anhlon img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
@media(max-width:560px){
 .sp{grid-template-columns:132px minmax(0,1fr);grid-template-areas:"hinh noi" "tn tn" "nut nut";grid-template-rows:auto auto auto}
 .sp-hinh{padding:42px 0 0 10px;align-items:flex-start}
 .sp-hinh img{max-width:122px}
 .sp-noi{padding:14px 14px 0 10px}
 .sp h3{font-size:17px}
 .sp-tn{flex-direction:row;justify-content:space-between;align-items:flex-start;gap:6px;margin:12px 14px 0;padding:10px 0 0;border-top:1px solid #E6E6E6}
 .sp-tn li{flex:1 1 0}
 .sp-nut{padding:12px 14px 14px}
 .sp-noibat .sp-noi{padding:52px 18px 22px}
}

/* ----- Ưu đãi ----- */
.ud{display:flex;flex-wrap:wrap;gap:clamp(20px,3vw,40px);align-items:center}
.ud-anh{flex:1 1 360px;min-width:0}
.ud-anh img{width:100%;height:auto;border-radius:18px}
.ud-noi{flex:1.2 1 420px;min-width:0;display:flex;flex-direction:column;gap:22px}
.ud-ds{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
@media(min-width:900px){.ud{align-items:stretch}.ud-anh img{height:100%;object-fit:cover}}
.ud-muc{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px 18px}
.ud-muc>svg{width:34px;height:34px;flex:none;color:var(--accent)}
.ud-phu{color:var(--muted);font-size:15px;margin-top:-8px}
.ud-muc h3{font-size:17px;font-weight:800;margin:2px 0 4px}
.ud-muc p{color:var(--muted);font-size:15px}
.ud-muc b{color:var(--accent-dark)}

/* ----- 5 lý do ----- */
#vi-sao{padding-top:0}
.ly-do{display:flex;flex-wrap:wrap;border-radius:20px;overflow:hidden;border:1px solid var(--border);background:#fff}
.ly-do-anh{flex:1 1 360px;min-width:0;background:#F7F7F7;position:relative;min-height:320px}
.ly-do-anh img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 18%}
.ly-do-noi{flex:1.25 1 420px;min-width:0;background:var(--accent);color:#fff;padding:clamp(28px,4vw,52px)}
.ly-do-noi h2{color:#fff;font-size:clamp(26px,3.4vw,36px);line-height:1.25}
.ly-do-noi h2::after{background:#fff}
.pill-web{display:inline-block;background:#fff;color:var(--accent-dark);border-radius:10px;padding:2px 14px;margin-top:8px}
.ly-do-ds{list-style:none;margin:24px 0 0;padding:0;display:flex;flex-direction:column;gap:16px}
.ly-do-ds li{display:flex;align-items:center;gap:16px;font-size:19px;font-weight:700;line-height:1.35}
.ld-ic{flex:none;width:52px;height:52px;border-radius:50%;background:#fff;color:var(--accent);display:flex;align-items:center;justify-content:center}
.ld-ic svg{width:26px;height:26px}
@media(max-width:820px){.ly-do-anh{flex-basis:100%;aspect-ratio:1/1;min-height:0}.ly-do-anh img{object-position:50% 0%}.ly-do-ds li{font-size:18px}.ld-ic{width:46px;height:46px}}

/* ----- Lắp đặt chuẩn ----- */
.lc-sai{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.ls{margin:0;position:relative;border-radius:12px;overflow:hidden;background:#EEE;aspect-ratio:354/395}
.ls img{width:100%;height:100%;object-fit:cover}
.ls figcaption{position:absolute;left:10px;right:10px;bottom:10px;background:#fff;border-radius:8px;padding:6px 10px;display:flex;align-items:center;gap:8px;font-weight:700;font-size:14px;color:#222;box-shadow:0 1px 4px rgba(0,0,0,.15)}
.ls figcaption svg{width:20px;height:20px;flex:none}
.lc-dung{margin-top:18px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:clamp(20px,3vw,30px);display:grid;grid-template-columns:1fr auto;align-items:center;gap:18px 24px}
.lc-dau h3{font-size:22px;font-weight:800}
.lc-dau p{margin-top:6px;color:var(--accent-dark);font-weight:600}
.lc-dung .btn{grid-column:2;grid-row:1}
.lc-dung ul{grid-column:1/-1;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:12px 28px}
.lc-dung li{display:flex;gap:10px;align-items:flex-start;font-size:16px;font-weight:600}
.lc-dung li svg{width:22px;height:22px;flex:none;color:var(--accent);margin-top:1px}
@media(max-width:820px){.lc-sai{grid-template-columns:repeat(2,minmax(0,1fr))}.ls figcaption{left:6px;right:6px;bottom:6px;padding:5px 8px;font-size:13px;gap:6px}.ls figcaption svg{width:16px;height:16px}}
@media(max-width:600px){.lc-dung{grid-template-columns:1fr}.lc-dung .btn{grid-column:1;grid-row:3;justify-self:start}}

/* ----- Quy trình ----- */
.qt{list-style:none;margin:28px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.qt li{background:#fff;border:1px solid var(--border);border-radius:14px;padding:22px;position:relative}
.qt .so{font-family:'Montserrat','Be Vietnam Pro',sans-serif;font-weight:800;font-size:36px;color:var(--orange);line-height:1}
.qt h3{font-size:18px;font-weight:800;margin:12px 0 6px}
.qt p{color:var(--muted);font-size:15px}
@media(max-width:900px){.qt{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){.qt{grid-template-columns:1fr}}

/* ----- Đánh giá ----- */
.dg-luoi{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin-bottom:18px}
.dg{margin:0;background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:10px}
.dg-dau{display:flex;align-items:center;gap:12px}
.dg-dau b{display:block}
.dg-tg{font-size:13px;color:var(--muted)}
.dg-av{width:42px;height:42px;border-radius:50%;background:#FFE8D1;color:var(--accent-dark);font-weight:800;display:flex;align-items:center;justify-content:center;flex:none}
.sao{display:flex;gap:2px;color:var(--orange)}.sao svg{width:18px;height:18px}
.dg blockquote{margin:0;color:#333}
.dg-cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px 20px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px 24px}
.dg-cta p{flex:1 1 320px;color:var(--muted)}
.dg-cta p b{color:var(--ink)}

/* ----- Hỏi đáp ----- */
.hd{margin-top:26px}
details{background:#fff;border:1px solid var(--border);border-radius:12px;padding:14px 18px;margin-bottom:10px}
summary{font-weight:700;font-size:17px;cursor:pointer;list-style-position:outside}
details p{margin-top:8px;color:var(--muted)}
.nen-xam details{background:#fff}

/* ----- Giới thiệu ----- */
.gt p{max-width:880px;color:#333;font-size:16px;margin-top:14px}
.gt h2{margin-bottom:6px}
.gt a{color:var(--accent-dark)}

/* ----- Liên hệ ----- */
.lh{background:#222;color:#fff;border-radius:20px;padding:clamp(24px,4vw,40px);display:flex;flex-wrap:wrap;gap:28px}
.lh>div{flex:1 1 340px;min-width:0}
.lh h2{color:#fff}
.cs{list-style:none;margin:20px 0 16px;padding:0;display:flex;flex-direction:column;gap:12px}
.cs li{display:flex;gap:12px;align-items:flex-start;color:#DADADA}
.cs li svg{width:22px;height:22px;flex:none;color:var(--orange);margin-top:2px}
.cs strong{color:#fff}
.lh a.l{color:#FFB15C}
.lh-dv{color:#DADADA;margin-bottom:18px}
.lh-map{min-height:320px}
.lh-map iframe{width:100%;height:100%;min-height:320px;border:0;border-radius:14px;display:block}

/* ----- Lắp WiFi ----- */
.wifi-pane{background:var(--tint);border-radius:16px;padding:clamp(24px,4vw,40px);display:flex;flex-direction:column;align-items:center;gap:22px}
.wifi-big{width:132px;height:132px;border-radius:50%;background:#fff;border:2px solid var(--orange);display:flex;align-items:center;justify-content:center;color:var(--accent)}
.wifi-big svg{width:64px;height:64px}
.wifi-ds{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;font-weight:600;font-size:16px}
.wifi-ds li{display:flex;align-items:center;gap:10px}.wifi-ds svg{width:22px;height:22px;color:var(--accent);flex:none}
.lien-ket{margin-top:22px}
.h404{font-size:clamp(30px,5vw,44px);font-weight:800;margin:10px 0 0}

/* ----- Chân trang ----- */
.chan{background:var(--tint);padding:36px 0 22px;font-size:14px;color:var(--muted)}
.chan .wrap{display:grid;grid-template-columns:2fr 1fr 1.5fr;gap:24px}
.chan b{color:var(--ink)}
.chan-ten{font-family:'Montserrat','Be Vietnam Pro',sans-serif;color:var(--orange)!important;font-weight:800;letter-spacing:.5px}
.chan p{margin-top:8px}
.chan a{color:var(--muted)}
.chan ul{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}
.ban-quyen{max-width:1160px;margin:22px auto 0;padding:16px 20px 0;border-top:1px solid #E2E2E2;text-align:center}
@media(max-width:800px){.chan .wrap{grid-template-columns:1fr}}

/* ----- Nút liên hệ nhanh ----- */
.callbar{position:fixed;left:0;right:0;bottom:0;display:flex;gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--border);box-shadow:0 -2px 10px rgba(0,0,0,.08);z-index:50}
.callbar a{flex:1}
.noi{position:fixed;right:18px;bottom:18px;display:none;flex-direction:column;gap:10px;z-index:50}
.noi a{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(0,0,0,.2);text-decoration:none;font-weight:800;font-size:14px}
.noi .n-goi{background:var(--accent);color:#fff}.noi .n-goi svg{width:24px;height:24px}
.noi .n-zalo{background:#222;color:#fff}
@media(min-width:900px){.callbar{display:none}.noi{display:flex}body{padding-bottom:0}}

/* ----- Giá sỉ ----- */
.si-wrap{padding:0 0 clamp(44px,7vw,72px)}
.si{display:flex;flex-wrap:wrap;align-items:center;gap:16px 22px;background:#222;color:#fff;border-radius:18px;padding:22px 26px}
.si-ic{width:52px;height:52px;flex:none;border-radius:50%;background:var(--orange);color:#fff;display:flex;align-items:center;justify-content:center}
.si-ic svg{width:26px;height:26px}
.si-noi{flex:1 1 360px;min-width:0}
.si-h{font-size:clamp(20px,2.4vw,24px)}
.si-h::after{display:none}
.si-noi p{color:#D8D8D8;font-size:15px;margin-top:6px}
.si .btn-vien{background:transparent;color:#fff;border-color:#fff}
.si .btn-vien:hover{background:rgba(255,255,255,.1)}